My current solution: emacs server on remote machine and x2go server. Then remote to it with x2go client, single application mode. I do the same with intellij. Very happy with it. x2go is the best, you have your remote app seamlessly integrated with your host pc. If the connection is lost, just start over again your x2go client, your app still runs in remote host.

Previously I did ssh x forwarding, but I had to compile emacs with lucid toolkit because there is a bug with gtk toolkit which may crash emacs on connection lost.

xpra is an alternative to x2go but it is not as good.

Or if you have time, try lsp-bridge https://github.com/manateelazycat/lsp-bridge, it is truly the fastest lsp client for emacs. It also provides remote development feature similar to vscode. I'd love to hear others' opinions if they've tried it.